Home / 286,386.96-395,203.02-159,070.68

Finding the Fourth Proportional to 286,386.96, 395,203.02 and 159,070.68

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Solution

The fourth proportional to 286,386.96, 395,203.02 and 159,070.68 is: 219,511.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,386.96 : 395,203.02 = 159,070.68 : x
  2. Step 2: Convert to fraction form
    286,386.96/395,203.02 = 159,070.68/x
  3. Step 3: Cross multiply
    286,386.96x = 395,203.02 × 159,070.68
  4. Step 4: Simplify right side
    286,386.96x = 62,865,213,129.45
  5. Step 5: Solve for x
    x = 62,865,213,129.45/286,386.96
  6. Step 6: Final answer
    x = 219,511.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.